Question

Correct sequence of plants in a hydrosere is :

• A. Pistia→Volvox → Scirpus → Hydrilla →Oak →Lantana
  
• B. Oak → Lantana → Volvox → Hydrilla → Pistia → Scirpus
  
• C. Oak → Lantana → Scirpus → Pistia → Hydrilla → Volvox
  
• D. Volvox → Hydrilla → Pistia → Scirpus → Lanatana → Oak
  

Answer 1

The correct option is D Volvox → Hydrilla → Pistia → Scirpus → Lanatana → Oak


Hydrosere, originating in water(pond, pools, lakes, etc.) and starts with the colonization of some phytoplanktons which form the pioneer plant community, and finally terminates into a forest, which is a climax community together with their chief components of vegetation.

The various stages together with their components of plant species of a hydrosere are phytoplankton stage, rooted submerged stage, rooted floating stage, reed swamp stage, marsh or sedge meadow stage, woodland stage and climax forest stage.

Volvox is phytoplankton, Hydrilla is a rooted submerged plant, Pistia is rooted floating plant, Scirpus is reed swamp plant, Lantana is sedge meadow plant & oak is a woody tree.

So, the correct answer is 'D'.